Period late 5 days

I had unprotected sex on dec 2018 the 23 n 24th then had unprotected the 31st then JAN 1,2,3, then now I had unprotected from the 14th Til 16 of jan 2019 its pretty much the waiting game NO PERIOD HAS SHOWN UP 🤯😳😱

HELP PLS MY MAN IS SAYING ITS JUST STRESS BUT I DNT THINK SO 😖🤯!!!!